Active standard | Published: 07/03/2023

IEC 61158-5-27-ed.1.0

Industrial communication networks - Fieldbus specifications - Part 5-27: Application layer service definition - Type 27 elements
(Reseaux de communication industriels - Specifications des bus de terrain - Partie 5-27: Definition des services de la couche application - Elements de type 27)

Available languages: English and French

Available design: electronic design (pdf), Print design, CD-ROM

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Detail information

Designation: IEC 61158-5-27-ed.1.0

Publication date: 07/03/2023

Pages: 0

Country: International technical standard

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Anotation

IEC 61158-5-27:2023 provides common elements for basic time-critical and non-time-critical messaging communications between application programs in an automation environment and material specific to Type 27 fieldbus. The term "time-critical" is used to represent the presence of a time-window, within which one or more specified actions are required to be completed with some defined level of certainty. Failure to complete specified actions within the time window risks failure of the applications requesting the actions, with attendant risk to equipment, plant and possibly human life. L’IEC 61158-5-27:2023 donne les elements communs visant a assurer les communications de messagerie de base a temps critique et a temps non critique entre les programmes d’application d’un environnement d’automatisation et d’un materiel specifique au bus de terrain de type 27. Le terme "a temps critique" est utilise pour indiquer la presence d’une fenetre temporelle, dans laquelle il est exige de realiser une ou plusieurs actions specifiees selon un niveau defini de certitude. Tout manquement a realiser ces actions dans la fenetre de temps prevue risque de provoquer la defaillance des applications qui les demandent, avec le risque de mettre en danger l’equipement, l’usine, voire les personnes.

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